Rail-brake



LJENDRAL.

RAIL BRAKE.

APPLlcATloN FILED FEB.28.1919.

' Patentednly 22, 1919.

@nyu/1,4206

uNiTED srATEs PATENT oEEINoE.

:rAcoB JENDEA'L, or BARNEsEoEo, PENNSYLVANIA.

RAIL-BRAKE.

To all whom it may concern.' i

Be it known that I, JACOB JENDRAL, a citi-V zen of the UnitedStates,hresiding at Barnesboro, in the county of Cambria and State ofPennsylvania, have invented new and use-V ful Improvements inRail-Brakes, of which y fully understood. from the following de-`scription and claims, when the same are:

read in connection with the drawings, accompanying and forming part ofthis speciication, in which:

Figure is a plan view showing my brake as properly arranged relative toa mine car and a track rail.

Fig. 2 is a transverse section taken in the plane indicated by the line2-2 of Fig. 1, looking in the direction of the arrow.

Fig. 3 is an enlarged vertical section taken in the plane indicated bythe line 3-3 of Fig. l and showing the eccentric mounting of therail-engaging wheel.

Fig. 4; is a detail horizontal section, taken in the plane indicated bythe line l--t of Fio. 2.

imilar numerals of reference designate corresponding parts in all of theviews of the drawings.4

At 1 is the rear portion of a mine car, and at 2 is the track rail inconjunction with which my novel brake is adapted to operate.

' In furtherance of my invention I provide a beam 3. This beam 3 isprovided at one end witharetractile tension device 4 for the connectionof a chain or other cable 5 through which the beam is connected with thecar body, preferably at the side thereof. A portion of the beam 3 is inthe form of an. open fra-me 6, and in said frame is pivotally mounted ahorizontal shoe 7, disposed in opposition' to the outer side of the rail2. Pivotally mounted in the frame 6 of the beam and disposed at theopposite side of the rail, with reference to the shoe 7, is acomplementary shoe 8 that is adjustable as presently pointed out.Arranged in the Specification of Letters Patent.

Application yled February 28, 1919. Serial No.

Patented July 22, 1919.

shoe`8` is a horizontal rail-engaging' wheel 9, which is designed toextend through an elongated opening 10 in the inner side of the shoe.

Journaled in the shoe 8 and in the frame 6 is a verticalshaft 11, havinga cranklQ at its upper end. The said shaft 11 is provided with aneccentric portion 13, which occupies acentral aperture in the wheel 9.Carried in bearings 14 on shaft 11 is a verti! cal detent 15, having acrank 16 at its upper end, and normally pressed downwardly by a spring16a. The said detent l5 is designed to coperate with apertures 17 in theupper wall of the frame 6 with a View to adjustably positioning thewheel 9` relative to the shoe 8 in which the' same is arranged.

` When my novel brake is to be used in conjunction with a mine car orsimilar car, I prefer to employ a platform 18, which is super-imposedupon and fixed to the upper wall of the frame 6, so as to afford aconvenient stand for the operator, who will have for his duty to controlthe shaft 11 and the detent 15.

In the practical use of my novel brake mechanism, applied as shown anddescribed, it will be manifest -that when the shaft 11 is turned aboutits axis to disengage the detent 15 from the frame 6, the wheel 9 willoperate after the manner of an eccentric cam, with the result that thetwo shoes 7 and 8 will securelygrip the rail head and effectually brakethe car. It will also be apparent that when deemed expedient theoperator on the platform 18 may turn the shaft 11 and thereby thrust thewheel 9 against the rail head with a view to increasing the power of thebraking action. When the detent 15 is disposed in the foremost aperture17 the wheel 9 will be adjustably positioned relative to the shoe 8, soas to lesse-n the gripping action of the shoes against the rail head,and it will be noticed that as the detent is arranged in the aperturestoward the rear end of the series the gripping action of the shoes willbe still further diminished, until when the detent is in the rearmostaperture of the series the shoes 7 and 8 will slip along the rail headwithout taking hold thereof.

Inasmuch as my novel brake is designed to be employed in the nature ofan anchor for mining cars, the connection of the cable 5 to the car may,when desired, be a detachable `connection7 so that the brake mechanismmay be employed in connection with a number of cars in succession.

Vhile designed primarily 'itor use in con# nection with a mine car andone of the flat rails thereof, 'I would have it understood that the'brake may be employed to advantage in connectioii with an elevatorca-rand one of its guide rails or in connection with a car and rail of anyother description.

I prefer to employ the specific `construction and relative arrangementof parts as herein shown and described, but I do not desire to beunderstood as confining' myself to the same, inasmuch as in `the l'utureprac tice of the invention various changes in the form and relativearrangement of the elements may bemade without involving.;` de-` parturefrom the scope of my invention yas defined in my 4appended claims.y

Having described my invention, what I claim and desire to secure byLetters Patent, is:

l. A railbrajke comprising` a beamya shoe car'ried by the beam landadapted to `be o-pposed `to one side of a rail, a shoe carried by thebeam and adapted to be positioned at the opposite side of a rail, ashaft journaled in the *beam and Krthe*last`na-1ned shoe and having aneccentric portion disposed in said shoe, and a Wheel disposed in saidshoe and receiving said eccentriciportion of the shaft and adapted toengage the adj acen't side of the rail.

2. A rail brake comprising a beam 4having an open frame portionprovidedin `its upper Wall Witha series of apertures, 4a shoe :pivoted in saidframe lpo-rtionand adapted to be opposed to y one side of arail, a lshoepositioned in the fra-me portion and adapted to L rest at the oppositeside of -a rail, and 'having a horizontalslotf, awheeldisposed in saidslot, a shaft ,journaled in the frame and the shoe and having aneccentric, portion arranged in the Wheel and also hai/ing a crank, and adetent car ied by the sha-ft and ladapted to seat in the apertures intherame.

In 4testimony whereof I uhave"atlixed my signature. Y, l

JACOB JENDRAL.

Copies df this patent may be obtained forpvve Acents each, py'addressingl the Commissioner Vof` Patents,

Washington, D. Clf l

